Re: [xcat-user] [External] Manually add CNAME records to xcat-managed DNS?

[Calvin S. <c.s...@qm...>]

You nailed it, Kilian - worked like a charm. The "-y " flag was the magic (i had been trying to use xcat_key with "-k <file_containing_keydata>". It's also necessary to use fqdn:

> zone <zonee>
> update add CNAME.zone 86400 CNAME ANAME.zone
> send

thanks very much!

Cal Sawyer
ITS Research Platforms Manager
Queen Mary University of London
________________________________
From: Kilian Cavalotti <kil...@gm...>
Sent: 26 June 2024 18:39
To: xCAT Users Mailing list <xca...@li...>
Subject: Re: [xcat-user] [External] Manually add CNAME records to xcat-managed DNS?

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Hi Calvin,

On Fri, Jun 21, 2024 at 5:47 AM Calvin Sawyer <c.s...@qm...> wrote:
> The issue is no so much what makedns -n will do , but how to actually create a CNAME record in xcat's DNS
>
> Running nsupdate using a keyfile containing the key data that exists in both named.conf and in passwd tabdb, any change attempt results in :
>
> ; TSIG error with server: tsig indicates error
> update failed: NOTAUTH(BADKEY
>
> What I'm hoping to discover is how to add a record manually using nsupdate in the same manner as xcat does running makedns <node>.

I usually do something like this to get the TSIG auth key from the
xCAT passwd table, and use it to authenticate nsupdate:

$ xk=$(tabdump -w key==omapi passwd | awk -F, '!/#/ {gsub(/"/,""); print $3}')
$ nsupdate -l -v -y xcat_key:$xk

Hope this helps!

Cheers,
--
Kilian


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